WO1997022771A1 - Percuteur mecanique a cycle d'impact par inertie - Google Patents

Percuteur mecanique a cycle d'impact par inertie Download PDF

Info

Publication number
WO1997022771A1
WO1997022771A1 PCT/US1996/020894 US9620894W WO9722771A1 WO 1997022771 A1 WO1997022771 A1 WO 1997022771A1 US 9620894 W US9620894 W US 9620894W WO 9722771 A1 WO9722771 A1 WO 9722771A1
Authority
WO
WIPO (PCT)
Prior art keywords
striker
latch
door
movement
power
Prior art date
Application number
PCT/US1996/020894
Other languages
English (en)
Inventor
Harry C. Buchanan, Jr.
Original Assignee
Itt Automotive Electrical Systems, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Itt Automotive Electrical Systems, Inc. filed Critical Itt Automotive Electrical Systems, Inc.
Publication of WO1997022771A1 publication Critical patent/WO1997022771A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/20—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening
    • E05B81/22—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening by movement of the striker
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/02—Striking-plates; Keepers; Bolt staples; Escutcheons
    • E05B15/0205—Striking-plates, keepers, staples
    • E05B15/022—Striking-plates, keepers, staples movable, resilient or yieldable
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/20—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening
    • E05B81/21—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening with means preventing or detecting pinching of objects or body parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/46—Sliding door fasteners
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/68—Keepers
    • Y10T292/696—With movable dog, catch or striker
    • Y10T292/699—Motor controlled

Definitions

  • the present invention relates to a power striker apparatus for engaging a striker with a latch to inertially move the striker with respect to the latch from a secondary latch position to a primary latch position, and in particular, to an apparatus and method for inertially moving the striker and latch with respect to one another from a secondary latch position to a primary latch position and for moving a sliding door of a vehicle from a location adjacent to the closed position to a fully closed position in sealed engagement with the frame around the periphery of the door opening of the vehicle.
  • a typical standard automotive door latch assembly includes a striker, which can take the form of a pin or a U-shaped member, fixedly mounted in the door frame to project into the door opening and into the path of movement of a latch member mounted on the edge of the door, which includes the fork bolt therein.
  • the latch member is typically movably mounted with respect to the door and arranged so that as the door approaches its closed position, the latch member will engage the striker and further closing movement of the door will move the latch member into safety latch position with respect to the pin, sometimes referred to as the secondary latch position, and further closing movement of the door will move the latch member into a primary latch position with respect to the pin, which positively retains the door against movement away from its closed position.
  • Power striker devices have been proposed to overcome the high force requirements to move sliding doors into the fully closed position.
  • the power striker devices are mounted on the door frame for powered movement between an outboard ready position with respect to the vehicle center line where the latch is engaged with the striker and an inboard holding position where the striker holds the latch door in the fully closed position. It is still required in such systems to use high force or momentum in order to ensure that the latch engages the striker in the primary latch position prior to movement into the fully closed position.
  • the striker When the door is open, the striker is located in its outboard ready position. After closing translation of the door is complete, the latch on the door engages the striker and latches the door to the striker while the striker is still in the outboard position.
  • the door may engage a limit switch on the door frame when in the outboard position to actuate a drive motor which, through appropriate mechanism, drives the striker to its inboard position, such that the latched engagement between the door and striker enables the pin to drive the door to the fully closed position.
  • a closing force sufficient to engage the latch to the primary latch position with respect to the striker needs to be applied.
  • the powered movement of the striker provides the force necessary to compress the door seal. If the striker and latch do not reach the primary latch position with respect to one another, the powered movement of the striker from its outboard position to its inboard position would not be sufficient to bring the door to the fully closed position in sealed engagement with the frame around the periphery of the door opening. In such cases, the user may be required to reopen and close the door repeatedly until the latch and striker are disposed in the primary latch position with respect to each other when in the outboard position.
  • a power striker apparatus includes an optionally controlled inertially activated impact cycle for engaging a striker, such as a pin or U-shaped member, with respect to a latch including a fork bolt movable from a secondary latch position to a primary latch position.
  • a striker such as a pin or U-shaped member
  • the best door seals typically offer higher closing resistance, and require a large force or high momentum to close the doors.
  • a normal effort will only latch the striker in the secondary latch position, sometimes referred to as the safety latch position, even when the latching system is equipped with a power striker that allows striker engagement 12mm to 25mm away from the fully closed position where the door is in sealed engagement with the frame around the periphery of the door opening.
  • the present invention provides means for snapping the spring loaded power striker into the door, when partially closed in the secondary latch position, causing the striker to move with respect to the fork bolt, such that the fork bolt moves into the primary latch position before the door can move outward from the inboard position.
  • the power striker is then reactivated to pull the door into the fully closed inboard position in sealed engagement with the frame around the periphery of the door opening.
  • the present invention eliminates the need for the operator to reopen and re-slam the door in order to bring the striker into the primary latch position with respect to the latch prior to operation of the power striker.
  • the power striker apparatus moves the engagement striker, such as a bolt pin or U-shaped bolt, outboard to ensure that the striker reaches the primary latch position with respect to the latch mechanism prior to the power striker being reactivated to draw the door into the fully closed and sealed position. If the striker and latch mechanism are only engaged in the secondary latch position, or safety position, normally the door must be reopened and a second attempt at closing the door must be attempted by the operator.
  • the present invention provides means for snapping or restriking the striker member outward to quickly drive the striker into the primary latch position with respect to the door latch mechanism before the door has a chance to move outward.
  • the present invention may include a method of determining whether primary or secondary latch positions have been achieved, by monitoring the minimum amount of time required to achieve the desired position. A longer time period would be associated with reaching a primary latch position, since the force to close is higher and higher torque is required of the motor and associated gear box, slowing the motor and associated gear box, thereby requiring more time to close when in the primary latch position.
  • the door ajar switch can be used as an input signal to the controller logic to determine if the door is successfully closed.
  • the present invention can include biasing means for preloading a striker arm clockwise towards a stop, where the striker pin will be in a first position.
  • the biasing means such as a spring, is reacted against a spring pin and is centered on a pivot member.
  • Motor means is also provided for driving a worm and gear assembly which in turn drives a second worm and gear assembly.
  • the gear portion of the second worm and gear assembly is pinned to a drive arm which carries a roller fastened thereto.
  • the roller When the drive arm is driven clockwise, the roller is caused to engage the roller cam, the striker arm is caused to rotate counterclockwise from the first position to a second position, where a switch means is provided for signaling a controller means for stopping the motor with the roller in a second position and the striker pin in a second position.
  • the door system logic controller means is provided for determining if the door is closed, and if the door latch fork bolt is in the primary position. If the door latch fork bolt or striker is in the primary position, the controller means will reset and be prepared to operate the striker clockwise from the second position to the first position by rotating the drive arm counterclockwise from the second position to the first position when it is desired to open the door. This typically would be a quiet operation.
  • the drive arm is rotated clockwise beyond the second position, such that the roller rotates past the end of the cam surface and the striker arm is spring propelled to inertially snap back to the first position against the stop.
  • the spring load and striker arm inertia must be sufficient to carry the fork bolt or striker into the primary position.
  • the drive arm then continues clockwise until it engages the roller cam at the first position, where it is ready for another cycle to move the door into the fully closed position with the latch and pin in the primary latch position.
  • Figure 1 is a simplified schematic view of a power striker in a first position according to the present invention
  • Figure 2 is a simplified schematic view of a power striker in a second position according to the present invention
  • Figure 3 is a simplified schematic view of an alternative configuration for a power striker apparatus in the first position according to the present invention
  • Figure 4 is a simplified schematic view of the alternative configuration of the power striker apparatus in the second position according to the present invention
  • Figure 5 is a simplified cross-sectional view of the power striker apparatus connected to a portal through a barrier, such as the door frame of a vehicle for a sliding door latch assembly; and
  • Figure 6 is a flow diagram of a method of operating and controlling the power striker apparatus according to the present invention.
  • a movable closure assembly including a fixed frame defining a portal through a barrier, where the movable closure is mounted on the frame for movement along a fixed path between a first end limit of movement obstructing the portal and a second end limit of movement allowing ingress and egress through the portal are well known and commercially available from a variety of sources.
  • the present invention is directed to certain components of a power drive system by means of which a movable closure, such as a sliding door, hatch, roof panel, window or the like can be power driven into a primary latch position and fully closed position in sealed engagement with the frame around the periphery of the portal, such as a door opening for a sliding door of a vehicle.
  • a barrier such as a wall of a vehicle, for example a van-type vehicle, has a movable closure, such as a sliding door located on at least one side of the vehicle. Vans using such sliding doors have been available for years and the structural arrangements by which the doors are mounted on the vehicle for movement between the closed position, where the door is sealingly seated in a door opening, and an open position, where the door is disposed at the side of the van rearwardly of the door opening are well known.
  • the door is latched in its closed position, typically by mechanical latches at the front and rear edges of the door, and the latches are mechanically linked to a latch actuator mounted within the door to be simultaneously released by actuation of manually operated door handles, or electronically as part of a power door drive system.
  • the rear latch may include a power driven striker mechanism which is latchingly engaged with the door as it approaches its closed position and is power driven to move the latched door to its fully closed position.
  • an electronic control unit enables the power drive for the door to be operated in a safe and efficient manner, as by providing the door with an anti-pinch capability by automatically stopping the drive if an object becomes trapped between the closing door and the door frame, providing for express operation and eliminating the need for limit switches to sense specific door positions.
  • the barrier is a construction forming an extended indefinite surface preventing or inhibiting the passage of persons or things, and can include a wall, ceiling, roof or cover for a stationary structure or a movable vehicle, such as the vertically extending wall 10 of a van-type vehicle illustrated in cross-section in Figure 5.
  • the portal is structure defining an opening 12 through the barrier for passage of persons or things, such as the framing of a door, window, hatch or roof panel opening.
  • the movable closure 14 is an obstructive structure whose presence in or before a passage bars traffic through the passage and is mounted to move in a regular, repetitive, predetermined path 16 with respect to the opening 12 so as to alternately open or close the passage, and can take the form of a hatch, a sliding window, a roof panel or a sliding door.
  • a simplified schematic of a power striker apparatus 20 is illustrated.
  • the power striker apparatus 20 is shown with the striker 22, such as a striker pin, fork bolt, U- shaped striker or the like, in a first outboard position with respect to a longitudinally extending center line of the vehicle.
  • FIG 2 illustrates the power striker apparatus 20 with the striker 22 in a second position corresponding to an inboard position with respect to a longitudinally extending center line of the vehicle.
  • Base means 24 is provided for supporting the striker 22 for movement between the first position illustrated in Figure 1 and the second position illustrated in Figure 2 with respect to the latch mechanism 26 illustrated in phantom in Figure 5.
  • Biasing means 28 urges the base means 24 toward the first position.
  • Drive means 30 operably moves the base means 24 from the first position against the urging of the biasing means 28 toward the second position.
  • the drive means 30 in response to further clockwise movement of the illustrated embodiment can selectively release the base means 24 when in the second position, such that the striker 22 snaps back to the first position in response to the urging of the biasing means 28 to inertially drive the striker 22 into the primary latch position from the secondary latch position with respect to the latch mechanism 26.
  • Control means 32 operably actuates the drive means 30 for moving the base means 24 between the first and second positions.
  • Sensor means 34 signals when the base means 24 is in the second position.
  • Stop means 36 limits movement of the base means 24 to define the first position and absorbs impact from the base means 24 during return movement to the first position from the second position.
  • the base means 24 can include a rotatable arm 38 for supporting the striker 22 for movement between the first and second positions.
  • the arm 38 can include a seat 40 and a cam surface 42 formed thereon.
  • the biasing means 28 operably engages with the seat 40 of the arm 38 for urging the arm 38 toward the first position.
  • the drive means 30 preferably includes a roller 44 engageable with the cam surface 42 for moving the arm 38 between the first and second positions.
  • the biasing means 28 can include a spring, such as a torsion spring 46 as illustrated in Figures 1 and 2, or a compression spring 48 as illustrated in Figures 3 and 4.
  • the drive means 30 best seen in Figures 1, 2 and 5 preferably includes an electric motor 50 for powering movement of the base means 24 between the first and second positions.
  • Gear means 52 operably connects the electric motor 50 and base means 24 for transferring movement from the motor 50 to the base means 24.
  • the gear means 52 may include a first worm and gear assembly 54 having a first worm 56 and a first gear 58 operably intermeshing with one another.
  • the electric motor drives the first worm 56 in rotation about its longitudinal axis, which in turn rotates the first gear 58 about an axis which is illustrated at a 90° angle with respect to the worm gear axis in Figures 1 and 2.
  • the first gear 58 is connected to a second worm and gear assembly 60 including a second worm 62 and a second gear 64.
  • the first gear 58 drives the second worm 62 about its longitudinal axis, which in turn operably intermeshingly engages with the second gear 64 to rotate about an axis disposed at 90° with respect to the longitudinal axis of the second worm as illustrated in Figures 1 and 2.
  • a drive arm 66 is connected to the second gear 64 for rotation therewith.
  • the roller 44 is connected to the drive arm 66 spaced radially outward from the rotational axis of the second gear 64.
  • the roller 44 operably engages the cam surface 42 formed on the rotatable arm 38 supporting the striker 22.
  • the rotatable arm 38 is pivotable about pivot member 68.
  • the biasing means 28 is anchored at one end 70, such as against spring pin 72 illustrated in Figures 1 and 2, or a wall of housing 74 illustrated in Figures 3 and 4, while the opposite end 76 of the biasing means 28 urges the base means 24 toward the first position.
  • the torsion spring 46 is centered on the pivot member 68.
  • the base means 24 can include a housing 74 having a slot or pin 78 disposed therein.
  • a slidable plate 80 can be engaged within the pin 78 of the housing 74 for movement between the first position illustrated in Figure 3 and the second position illustrated in Figure 4.
  • the plate 80 supports the striker 22 with respect to the latch mechanism 26 illustrated in phantom in Figure 5.
  • the plate 80 preferably has a seat 40 and a cam surface 42 formed thereon.
  • the biasing means 28 operably engages between the seat 40 and the housing 74 for urging the plate 80 toward the first position.
  • the drive means 30 preferably includes a roller 44 operably engageable with the cam surface 42 for moving the plate 80 between the first and second positions.
  • the biasing means 28 can take the form of a compression spring 48 with one end 70 disposed against a wall of the housing 74 and an opposite end 76 operably engageable with the seat 40 of the base means
  • the present invention encompasses an apparatus and method for inertially moving the latch and striker means 82 from a secondary latch position to a primary latch position and for moving the moveable closure 14 from a location 84 adjacent the closed position to the fully closed position 86 in sealed engagement with the frame around the periphery of the opening 12.
  • the method of operation of a power striker apparatus 20 includes the steps of inertially moving the latch and striker means 82 from a secondary latch position to a primary latch position, and moving the moveable closure 14 from the location 84 adjacent the closed position to the fully closed position 86 in sealed engagement with the frame around the periphery of the opening 12.
  • the drive means 30, as seen in Figures 1, 2 and 5 is actuated to move the striker 22 from the first position to the second position as illustrated in step 88 of Figure 6.
  • the control means 32 With the striker 22 in the second position, the control means 32, seen in Figures 1 and 2, determines whether the latch 26 is in the primary latch position with respect to the striker 22 as illustrated in the first inquiry step 90 of Figure 6. If the control means 32 determines that the latch 26 is in the primary latch position with respect to the striker 22, the control program progresses to step 92 indicating that action is complete and the control means 32 resets so that the roller 44 can be rotated counterclockwise when it is desired by the operator for the moveable closure to open.
  • step 94 the control means 32 determines whether the latch 26 is in the secondary latch position with respect to the striker 22. If the control means 32 determines that the latch 26 is not in the secondary latch position with respect to the striker 22, the control method progresses to step 96 to signal the moveable closure is ajar to indicate that the moveable closure needs to be manually or automatically recycled to the open position and translated back to the closed position and the control program returns to the initial step 88.
  • control means 32 determines that the latch 26 is in the secondary latch position with respect to the striker 22, the control means 32 restrikes the striker 22 with respect to the fork bolt of the latch mechanism 26 as indicated in step 98 by continuing to rotate the roller 44 clockwise beyond the second position illustrated in Figures 2 and 4, so that the roller 44 disengages from the cam surface 42 to cause the base means 24 to be driven from the second position to the first position by the biasing means 28.
  • This action dynamically engages the striker 22 with respect to the fork bolt to move the fork bolt into the primary latch position with respect to the striker 22 before the moveable closure 14 with a higher inertia can move in the outboard direction.
  • the roller 44 is rotated clockwise until it returns to the first position illustrated in Figures 1 and 3 and the control program is returned to step 88 so that the drive means 30 is actuated to drive the roller 44 clockwise to move the striker 22 from the first position to the second position with the latch 26 now in the primary latch position with respect to the striker 22 thereby pulling the moveable closure 14 into the fully closed position 86 with respect to the opening 12 in the barrier 10.

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne un dispositif à percussion mécanique (20) qui assure le couplage d'un percuteur (22) et d'une planche (26) de sorte que le percuteur se déplace par rapport au mécanisme d'enclenchement, depuis une position de verrouillage secondaire vers une position de verrouillage primaire. Une base (24) soutient le percuteur dans son mouvement entre une première position et une seconde position par rapport au mécanisme de verrouillage. Une pièce de contrainte (28) pousse la base vers la première position. Un mécanisme d'entraînement (30) déplace la base depuis la première position, contre la poussée de la pièce de contrainte, vers la seconde position, et libère sélectivement la base en place dans la seconde position si le percuteur est lui-même dans la position de verrouillage secondaire lorsque la base arrive en seconde position, de sorte que le percuteur retourne spontanément à la première position, en réaction à la poussée de la pièce de contrainte, étant ainsi entraîné par inertie vers la position de verrouillage primaire par rapport au mécanisme de verrouillage depuis la position de verrouillage secondaire, avant que l'on ne puisse déplacer la porte mobile (14) par rapport à son mécanisme d'ouverture (12).
PCT/US1996/020894 1995-12-20 1996-12-20 Percuteur mecanique a cycle d'impact par inertie WO1997022771A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57564495A 1995-12-20 1995-12-20
US08/575,644 1995-12-20

Publications (1)

Publication Number Publication Date
WO1997022771A1 true WO1997022771A1 (fr) 1997-06-26

Family

ID=24301145

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/020894 WO1997022771A1 (fr) 1995-12-20 1996-12-20 Percuteur mecanique a cycle d'impact par inertie

Country Status (2)

Country Link
US (1) US5765886A (fr)
WO (1) WO1997022771A1 (fr)

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WO1997042384A1 (fr) * 1996-05-03 1997-11-13 Itt Automotive Electrical Systems, Inc. Gache electrique a fonctions de neutralisation
EP1052356A1 (fr) * 1999-05-10 2000-11-15 Valeo GmbH & Co. Schliessysteme KG Dispositif de fermeture pour porte de véhicule
EP1101886A3 (fr) * 1999-11-20 2002-09-04 Kiekert Aktiengesellschaft Serrure de porte pour véhicule automobile
DE10316763A1 (de) * 2003-04-10 2004-10-28 Siemens Ag Zuziehhilfe
DE102004013357B3 (de) * 2004-03-17 2005-09-29 Kiekert Ag Kraftfahrzeug ohne B-Säule
WO2005124071A1 (fr) * 2004-06-22 2005-12-29 Valeo Sicherheitssysteme Gmbh Ensemble gache a ressort
EP1803876A2 (fr) * 2005-12-30 2007-07-04 Kiekert Aktiengesellschaft Serrure de véhicule automobile

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US7367598B2 (en) * 2005-02-07 2008-05-06 Delphi Technologies, Inc. Power striker with manual override
US7445258B2 (en) * 2005-02-07 2008-11-04 Delphi Technologies, Inc. Power linear displacement striker
EP2449193A4 (fr) * 2009-06-12 2014-12-03 Raymond A & Cie Serrure à gâche électrique
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US11512505B2 (en) 2016-03-31 2022-11-29 Trimark Corporation Motorized movable strike for a vehicle door
US20220372799A1 (en) * 2021-05-20 2022-11-24 Rivian Ip Holdings, Llc Devices, structures, and methods for controlling latching operations

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EP1052356A1 (fr) * 1999-05-10 2000-11-15 Valeo GmbH & Co. Schliessysteme KG Dispositif de fermeture pour porte de véhicule
EP1101886A3 (fr) * 1999-11-20 2002-09-04 Kiekert Aktiengesellschaft Serrure de porte pour véhicule automobile
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WO2005124071A1 (fr) * 2004-06-22 2005-12-29 Valeo Sicherheitssysteme Gmbh Ensemble gache a ressort
EP1803876A2 (fr) * 2005-12-30 2007-07-04 Kiekert Aktiengesellschaft Serrure de véhicule automobile
EP1803876A3 (fr) * 2005-12-30 2010-03-10 Kiekert Aktiengesellschaft Serrure de véhicule automobile
DE102005062998B4 (de) 2005-12-30 2019-04-25 Kiekert Ag Kraftfahrzeugtürverschluss

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